Pocket Watch Database
Patent Archive
#842525
Patent Information
Timer Furnace Damper
Walter F. Cawthorne
Henry M. Lummis
January 29, 1907
Patent #842525
| Patent Number: | 842525 |
| Description: | Timer Furnace Damper |
| Inventor(s): |
Walter F. Cawthorne Henry M. Lummis |
| Assignee: | Autodraft Mfg Co |
| Patent Date: | Jan 29, 1907 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
